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net: JoinHostPort should not enclose non-IP literals in square brackets #18059
Looks like I forgot to add a test case. As per https://tools.ietf.org/html/rfc4007 (and considering https://tools.ietf.org/html/rfc6874 for the interoperability of the output of JoinHostPort), JoinHostPort should not enclose any non-IP literal in square brackets, and remove any scope zone identifier if necessary for avoiding ambiguity.